I think it’s more a case of the pollsters trying to hedge their bets after spending the last four years lying about what the American people really think.
Yeah, I agree. I'd go further and say that they're trying to salvage the entire political polling industry because they know that they've been putting out false polls for big bucks paid for by the billionaires behind the DNC as part of their ongoing PSYOP against the American people.
Instead of "we've been lying to you as we were paid to do the last 4 years" they'll say "Trump got the Big Mo from out-campaigning Biden (insert excuse-of-the-day here) the last few weeks of this election cycle."
That way, they retain at least some credibility and can go on selling their souls another four years lying to us and trying to demoralize us with utterly fake polls.